2 years ago

Help my math teacher created thistest and I don’t know how to do any of this

Mathematics

1 answer:

swat322 years ago

8 0

Answer:

Step-by-step explanation:

If you’re looking for the intersection it’s B.

You might be interested in

Ax+by=c solve for y plz help hurryyyyy

Leviafan [203]

I believe that the answer for y is...

y= -ax+c/b

5 0

3 years ago

Prove that there exists a unique real number solution to the equation x3 + x2 − 1 = 0 between x = 2/3 and x=1

ziro4ka [17]

Replace each of the x values given to see if they give 0.

0=(2/3)³+(2/3)²-1
0=(8/27)+(4/9)-1
0≠-0.259

0=(1)³+(1)²-1
0≠1

Therefore, you can see that the solution would have to be between 2/3 and 1.

Hope I helped :)

7 0

3 years ago

What is the surface area of the rectangular pyramid

posledela

Answer:

Step-by-step explanation:

We have:

rectangle 4.8 m × 3.8 m

two triangles with base b = 4.8 m and height h = 2.6 m

two triangle with base b = 3.8 m and height h = 2.9 m.

The formula of an area of a rectangle l × w:

$A = lw$

Substitute:

$A_1 = (4.8)(3.8) = 18.24\ m^2$

The formula of an area of a triangle:

$A=\dfrac{bh}{2}$

Substitute:

$A_2=\dfrac{(4.8)(2.6)}{2}=6.24\ m^2\\\\A_3=\dfrac{(3.8)(2.9)}{2}=5.51\ m^2$

The Surface Area:

$S.A.=A_1+2A_2+2A_3\\\\S.A.=18.24+2(6.24)+2(5.51)=41.74\ m^2$

3 0

3 years ago

PLZZZZZZZ HELPPP 444444444

Vadim26 [7]

I think I’d B help this helps

3 0

2 years ago

A. 40°<br>B. 50°<br>C. 80 °<br>D. 140°

Ghella [55]

Answer: A. 40

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers